Plesiorizosceras Chen et al. 1981 (mollusk)

Cephalopoda - Oncocerida - Oncoceratidae

Full reference: J. Y. Chen, G. W. Liu, and T. E. Chen. 1981. Silurian nautiloid faunas of central and southwestern China. Memoirs of the Nanjing Institute of Geology and Palaeontology 13:1-104

Parent taxon: Oncoceratidae according to J. Y. Chen et al. 1981

Sister taxa: Asaphiceras, Beloitoceras, Centrorizoceras, Cyrtorizoceras, Dalecarlioceras, Digenuoceras, Dunleithoceras, Ehlersoceras, Ekwanoceras, Kentlandoceras, Laphamoceras, Loganoceras, Maelonoceras, Metarizoceras, Miamoceras, Neumatoceras, Oncoceras, Oocerina, Orthorizoceras, Paramiamoceras, Retizitteloceras, Richardsonoceras, Richardsonoceroides, Rizoceras, Romingoceras, Scofieldoceras, Tshingizoceras, Vaupelia, Zittelloceras

Subtaxa: none

Ecology: fast-moving nektobenthic carnivore

Distribution: found only at Yulongsi Formation Yunnanoceras assemblage (Silurian of China)

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